A group of diseases characterized by uncontrolled cell division. A disorder in which cells produce a localized tumor. A disorder in which tissues of the body are replaced by nonfunctional cells. All of these. None of these.
The United States country code 1 will allow you to call United States from another country. United States telephone code 1 is dialed after the IDD. United States international dialing 1 is followed by an area code. The United States area code table below shows the various city codes for United States.
In the US and its territories, Canada, and the Caribbean, the organization and allocation of telephone numbers is governed by the North American Numbering Plan Administration (NANPA). The NANPA organizes the allocation of area codes and telephone prefixes to various phone companies.The basic format of a phone number in any of these countries is NPA-NXX-XXXX or (NPA) NXX-XXX.or instance, area code 800 (commonly referred to as 800-numbers) is reserved for toll free calls where the called party is charged instead of the calling party. Also, not all area codes are currently in use. Only 316 of the possible 1000 area codes are currently being used.